Home / 1,657.17-2,287.62-1,118.93

Finding the Fourth Proportional to 1,657.17, 2,287.62 and 1,118.93

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Solution

The fourth proportional to 1,657.17, 2,287.62 and 1,118.93 is: 1,544.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,657.17 : 2,287.62 = 1,118.93 : x
  2. Step 2: Convert to fraction form
    1,657.17/2,287.62 = 1,118.93/x
  3. Step 3: Cross multiply
    1,657.17x = 2,287.62 × 1,118.93
  4. Step 4: Simplify right side
    1,657.17x = 2,559,675.21
  5. Step 5: Solve for x
    x = 2,559,675.21/1,657.17
  6. Step 6: Final answer
    x = 1,544.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.